1108853921 has 4 divisors (see below), whose sum is σ = 1267261632. Its totient is φ = 950446212.

The previous prime is 1108853909. The next prime is 1108853929. The reversal of 1108853921 is 1293588011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1293588011 = 23 ⋅56242957.

It is a cyclic number.

It is not a de Polignac number, because 1108853921 - 2¹⁴ = 1108837537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1108853929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79203845 + ... + 79203858.

It is an arithmetic number, because the mean of its divisors is an integer number (316815408).

Almost surely, 2^1108853921 is an apocalyptic number.

It is an amenable number.

1108853921 is a deficient number, since it is larger than the sum of its proper divisors (158407711).

1108853921 is an equidigital number, since it uses as much as digits as its factorization.

1108853921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158407710.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 1108853921 is about 33299.4582688668. The cubic root of 1108853921 is about 1035.0423317342.

The spelling of 1108853921 in words is "one billion, one hundred eight million, eight hundred fifty-three thousand, nine hundred twenty-one".